so I've been desperately trying to get my Dillon tumbler to work as good as my Midway ones. using the same media and polishing compound in all three tumblers (1 Dillon, 1 old Midway, and 1 new Frankford Arsenal), I find the Dillon heats up the media and drys out the polishing compound. resulting in a dull case, fairly clean, but not shiny like I like them. the other two tumblers, on for the same time produce bright shiny clean cases, with cool media. I've been thinking about drilling some holes in the sidewalls of the Dillon base, to help vent heat from the motor, anyone else done this?